A Pyrenean Mountain Dog puppy, only 15 weeks old. My brother in law owns this dog, it is female and she is called Xenna.
Xenna is growing very fast and when she is an adult she can reach 36-41 kg and 64-74 cm high.
Before Xenna my brother in law had a dog before, a Hovawart, and that dog's name was Xennon.